This paper presents an experimental approach aimed at analyzing and validating a two-scale nonlinear Finite Element (FE2) simulation of 3D composite structure. The studied material consists polyamide thermoplastic matrix, exhibiting viscoelastic-viscoplastic behavior with ductile damage, reinforced by woven glass fabric whereby inelastic anisotropic damage is considered. multiscale parallel com...

In order to determine whether there is an orientation preference of pyrrole-imidazole (Py-Im) polyamide dimers with respect to the 5′-3′ direction of the backbone in the DNA helix, equilibrium association constants (Ka) were determined for a series of six-ring hairpin polyamides which differ with respect to substitution at the N and C termini. Affinity cleaving experiments using hairpin polyami...

Abrasive wear is defined wear due to hard particles or hard protuberances forced againts and moving along a solid surface. This defination encompasses several different mechanisms by which material removal occoures. The five types of wear are abrasive, adhesive, erosion, fatigue and fretting. The abrasive wear of polymeric materials is the interest and the subject of quite number of literature....

Remarkable changes of properties result from systematically varying the surface functionality of polyamide dendrimers within a single generation.